Marathon Master

Enter the length and time from a recent run, select your target ­marathon from the race finder, and Epic Runner will create a custom training plan, taking you from the couch to 26.2 miles in five months. It tracks all the important ­metrics—pace, time, distance of training runs—so all you need to do is put one foot in front of the other. Prior to race day, familiarize yourself with the course through maps, and after you cross the finish line, the results finder will get your time. Android; $2Best iPhone Alternative: RunKeeper; free